Schauff, M. E., Evans, G. A. & Heraty, J. M. 1996. A pictorial guide to the species of <em>Encarsia </em>(Hymenoptera: Aphelinidae) parasitic on whiteflies (Homoptera: Aleyrodidae) in North America. <em>Proceeding of the Entomological Society of Washington</em>, 98: 1-35.